A medical device may include a bite guard assembly configured to restrict sliding movement of an elongated member relative to the bite guard assembly. The bite guard assembly may include a main portion including a mouthpiece. The main portion may include a surface defining a passageway for receipt of the elongated member therethrough. The bite guard assembly may also include a securing portion configured to restrict movement of the elongated member through the passageway and that is configured to be disposed between the surface and the elongated member.